Improvement in pumps



` ATENT FFICE.

lOBEN BALDW'IN, OF SUMMlTVILLE, IOWA.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 4 3,826, dated August 1G, 1864.

To @ZZ whom it may concern,.-

Beit known that I, OREN BALDWIN, of Summitville, county of Lee, and State of Iowa, have invented a new and useful Improvement in Pumps and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making apart ofthis speciiication, in which- Figure l is a vertical diametrical section through my improved pump. Fig. 2 is an enlarged side view of the pump valve or piston applied to its rod. Fig. 3 is a top view of Fig. 1 as seen by makinga horizontal section through the valve-guide.

Similar letters of reference indicate corresponding parts in the three figures.

This improvement relates to that class of pumps which are submerged beneath the surface of the water when used; and the object ol' my invention is to obtain a submerged pump, which, while it is very simple and cheap, shall not be liable to get ont of order under all ordinary usage, and which has its piston-valve so constructed that the use of packing is rendered unnecessary and its consequent evils avoided, as will be hereinafter described. ,y

To enable others skilled in the art to make and use my invention, I will describe its construction and operation.

In the accompanying drawings, A represents a hollow wooden shaft or penstock leading down to the bottom of the well, and B represents the lever-handle of the pump, which is suitably applied to the upper end of the pcnstock and connected to .the piston of the pump by means of a jointed pistonrod, a a', 'which is guided in its movements by the bracket b, that keeps the lower portion, a, always coincident to the axis of the pumpbarrel and allows the portion a to vibrate with the pump-handle.

The body of my pump is composed of two principal parts, C D, of which C is the upper portion or head, and Dis the lower portion or pump-barrel in which the piston works. The upper portion, C, is constructed with an opening, c, through its side, which opening is sur rounded by a flange or pipe that fits into a corresponding opening made in the side of the penstoek A, and this pipe serves to form au attachment of the head C with the penstock, and also as a communication between the bore of thc penstock and the pump. The cap or upper end 'of the portion G has a hole through it concentric with the axis of this portion, and into this hole is screwed a tubular cup, g, which forms a part of the stuft'- ing-box for the piston-rod c. The projecting tube of cup g receives an inverted cup, g', which forms the other part of the stuffingboX, and which has ears formed on it, through which pass the iixed studs h h, that receive nuts on their upper ends for the purpose of forcing down and keeping in plae the cup g. Thepackin g, whatever kind may be employed, is represented in Fig. l and lettered p. The lower part of the pump is secured to the head O by means of a male and female screw; but the two parts C and D may be put together by bolt fastenings, or in any other convenient manner, and at or near the bottom of the barrel D is a conical valve, 7c, which opens upward and allows the vi ater to rush into the pump, but prevents it from escaping therefrom. This valve 7c may be arranged either below the piston, as I have shown, or above the piston at the upper end of the barrel D or within the penstock A.

The piston of -my pump is constructed in the following manner: On the lowermost end of the piston-rod c an angular-sided stud, G, having a flange on its upper end, is secured, and on the lower end of this vertical stud a perforated disk, m, is suitably secured, as shown in Figs. I and 2. Between this disk and the flange n, at the upper end of the stud G, works another disk, m', which is also perforated, as shown in Figs. l and 3. rlhe lower disk, me, is adapted to fit snugly within the pump-cylinder D and to -work up and down therein, so as to form a piston for drawing the water through the valve k. The upper valve-disk should be applied within the and when the two valves, or rather the piston-rod, is depressed the loose disk m is thrown up against the flange a by the water below it, and thus allows the water to rush y rectangular; but it may be made in any other shape which will be found most desirable, the objectbeing to prevent the disk m from rotating.

It' desirable, the pump may be arranged as follows: Reverse the handle B and attach the barrel D to the penstock A, and let the rods a a work through the center of the penstock, the valves bein g arranged as described, with suitable openings for t-he working of the rod at top and passage ofthe water at the bottom.

Haring thus described my invention, what i I claim as new, and desire to secure by Letters Patent, is Y l. The combination of apenstock, A, with the head C, removable stuffing-box g g and detachable cylinder D, constructed substantially in the manner described.

2. The construction of the valve or piston ofthe pump of two perforated disks, m m', of the same diameter as the pumpfcylinder, and with the apertures of one disk opposite solid portions of the other, these disks being applied to a stud, G, and operating substantially as described.

OBEN BALDWIN.

Witnesses:

J. T. WRIGHT, J Aeon REINVALL. 

